The radio generates the audible warning through the left speaker. The radio receives audible warning requests via the serial data circuit from the instrument panel cluster (IPC) or the body control module (BCM).

Schematic Reference

Connector End View Reference

Description and Operation

Audible Warnings Description and Operation

Electrical Information Reference

Scan Tool Reference

Scan Tool Data List

Important: Before performing this diagnostics, make sure no indicator(s) are illuminated after the IPC performs the displays test. If any indicators are illuminated after the bulb test, perform the indicator diagnostics before this diagnostic.

1. Ignition ON, headlamp switch OFF, verify the scan tool Headlamp Off Switch parameter is Active.

⇒	If not Inactive, refer to Headlamp Low or High Beams Always On .

2. Ignition ON, park lamp switch OFF, verify the scan tool Park Lamps Switch parameter is Off.

⇒	If not Inactive refer to Park, License, and Tail Lamps Always On .

3. Ignition ON, doors closed, verify the scan tool Door Ajar Switch parameter is Door Closed.

⇒	If not On, refer to Courtesy Lamps Always On .

4. Ignition OFF, key out of the ignition, verify the scan tool Key In Ignition parameter is Inactive.

⇒	If not Inactive, test the key in ignition switch signal circuit terminal D for a short to ground. If the circuits tests normal, test or replace the ignition switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.